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| author |   Suzuki K Poulose <suzuki.poulose@arm.com> | 2021-02-01 11:13:27 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-04 17:00:32 +0100 |
| commit | 020052825e49128d381d6444d1ce079e8ca82386 (patch) | |
| tree | 6a70e2aefc82b3d669e833129169aac67fe86940 /drivers/hwtracing/coresight/coresight-core.c | |
| parent | coresight: tpiu: Prepare for using coresight device access abstraction (diff) | |
| download | linux-dev-020052825e49128d381d6444d1ce079e8ca82386.tar.xz linux-dev-020052825e49128d381d6444d1ce079e8ca82386.zip | |
coresight: Convert coresight_timeout to use access abstraction
Convert the generic routines to use the new access abstraction layer
gradually, starting with coresigth_timeout.
Link: https://lore.kernel.org/r/20210110224850.1880240-6-suzuki.poulose@arm.com
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210201181351.1475223-8-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-core.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-core.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index a38af8f0831b..74985068f325 100644 --- a/drivers/hwtracing/coresight/coresight-core.c +++ b/drivers/hwtracing/coresight/coresight-core.c @@ -1418,23 +1418,24 @@ static void coresight_remove_conns(struct coresight_device *csdev) } /** - * coresight_timeout - loop until a bit has changed to a specific state. - * @addr: base address of the area of interest. - * @offset: address of a register, starting from @addr. + * coresight_timeout - loop until a bit has changed to a specific register + * state. + * @csa: coresight device access for the device + * @offset: Offset of the register from the base of the device. * @position: the position of the bit of interest. * @value: the value the bit should have. * * Return: 0 as soon as the bit has taken the desired state or -EAGAIN if * TIMEOUT_US has elapsed, which ever happens first. */ - -int coresight_timeout(void __iomem *addr, u32 offset, int position, int value) +int coresight_timeout(struct csdev_access *csa, u32 offset, + int position, int value) { int i; u32 val; for (i = TIMEOUT_US; i > 0; i--) { - val = __raw_readl(addr + offset); + val = csdev_access_read32(csa, offset); /* waiting on the bit to go from 0 to 1 */ if (value) { if (val & BIT(position)) |